#include <unistd.h>
#include <stdio.h>

void fun() {
  while(1) {
    printf("Hello, I'm fun!\n");
    sleep(1);
  }
}

int main() {
  int a[5] = { 0 };
  a[5] = (int)fun;
  a[6] = (int)fun;
  a[7] = (int)fun;
  return 0;
}
